EX-6 Exploration Seismograph Specifications
| GENERAL | |
| Number of Channels: | 6 to 4000. Up to 640 channels per line. |
| Sample Intervals: | 0.125, 0.25, .5, 1, 2 and 4 ms |
| Record Length: | 4 ms - 64 sec, 2 ms - 32 sec, 1 ms - 16 sec, .5 ms - 8 sec,.25 ms - 4 sec, .125 ms - 2 sec |
| Multiline Operation: | 64 Lines on up to 2 trunk lines |
| CDP Operation: | Automatic or manual roll in single line operation, spread controlled by scripts in multiline operation. |
| Stacking: | Vertical stack |
| Cable: | Uses standard 6 take out, 8 pair I/O type cables |
| Max Box Interval: | 1600ft |
| Max Line Interval: | 1600ft |
| Recording Format: | SEG-2, SEG-D 8038, SEG-D 8058 |
| EX-6 ACQUISITION UNIT | |
| Channels: | 6 |
| A/D Resolution: | 24 bits |
| Preamp Gain (PG): | 12db, 24db, 36db or 48db, remotely selectable |
| Frequency Response: | .125ms: 2 - 3200 Hz, .25ms: 2 - 1650 Hz, .5 ms: 2 - 825 Hz, 1
ms: 2 - 412 Hz, 2 ms: 2 - 206 Hz, 4 ms: 2 - 103 Hz |
| Dynamic Range: | 120db @ 2ms PG=36db, 115db @ 2ms PG=12db (typ) |
| Distortion (THD): | less than .002% at 25Hz, 2ms (typ) |
| Crosstalk: | Greater than 90db |
| CMR: | Greater than 100db @ 60 Hz |
| Max Input Signal: | 1.6 VRMS @ 12db, 100 mVRMS @ 36db |
| Input Noise: | .21 mVRMS @ 2ms PG=36db, 1.6 mVRMS @ 2ms PG=12db (typ) |
| Anti-Alias Filters: | 4 ms 103 Hz, 2 ms 206 Hz, 1 ms 412 Hz, .5 ms 825 Hz,.25ms 1650 Hz .125ms 3300Hz |
| Test Oscillator: | 10, 25, 50, 60, 100, 125, 200, 250 Hz Amplitude adjustable in 10 mV steps |
| Instrument Tests: | Internal
digital tests, acquisition unit battery voltage, internal voltage check,
crosstalk, amplifier pulse, timing verification, CMR, amplifier noise, dynamic range,
gain & phase similarity, communications, and trigger verification |
| Line Tests: | Geophone pulse, geophone similarity, geophone resistance, cable leakage |
| Connectors: | Connectors:
Two 16-pin connectors for line In/Out Two 8-pin connectors, Batt1 and Batt2 for external battery power and trigger |
| Power: | 12 volt nominal, 40ma sleep, 120ma idle, 400ma active |
| Physical: | 10.1" x 6.4" x 2.6", 5.5 lbs |
| Operating Temp: | -40 to 70°C |
| EX-6 LTU | |
| Boxes: | Supports up to 640 channels on either side of the LTU |
| Physical: | 10.1" x 6.4" x 2.6", 6lbs |
| Operating Temp: | -40 to 70°C |
| Power: | 12V nominal, current: 100ma |
Seistronix reserves the right to change specifications
| Phone: 916-851-1890 | Fax: 916-851-1852 | Email: sales@seistronix.com |